I'm getting a tiny fraction of the essence of winter drops. I cleared my log to check this and in the time I had 20 drops my essence count went up by 4...
Very enjoyable game, good replayability. Other than the log of found buildings that has already been suggested (navigable alphabettically, for preference), I would also like to see high scores.
I found several levels in which the final picture is the same. As others have said, there are way too many levels with multiple solutions (aka guesswork). Each level should have one solution, achievable by logic. It should be possible to click and drag tiles across rows/columns.
It's nice to have a lot of levels but this game is nowhere near competing with other games of this genre on Kong.
Disclaimer: I love match-3 games, I really do. That said, there is nothing to love about this game. It's been a very long time since I last had such a joyless experience. The matches are made just about fast enough but new items drop very sluggishly. It makes the whole game feel really slow. I slogged through 21 levels in the hope of finding more interesting mechanics, but no such luck. A generous 2/5 for being able to chose between swapping and double-clicking bombs.
I came back to play after several days and now, in Research, all categories display as either 1/12 or 0/12. The prices seem to be right for the level of upgrades I had before and the frequency of special shots seems okay, too. So just a display issue I thik but still very annoying.
Very buggy from the start, randomly stops responding to key presses, gets stuck if this happens at the bottom of the screen... After 5 minutes it just wasn't worth it